Tablet PCs have registered their presence in the market today. The demand for them is increasing with each passing day and more and more people are incorporating the use of this sleek and stylish PC in their day to day work. The portable quality and the incorporation of the touch screen technology is innovative and new, and that is why more and more people are attracted towards it.

The use of the digital pen (stylus) and the finger of the user, instead of the keyboard is a new technology that has been introduced in the tablet PC that makes it more user friendly. This is made possible with the help of the digitizer that is mostly installed behind the screen of the PC. This device senses the finger or the digital pen on the screen and interprets the action that it wishes to perform.

There are various types of digitizers that are available for tablet PCs.

1.Active Digitizer: This type is used in maximum number of tablet PCs. It can sense the position of the pen when it is close proximity to the screen. The pen does not even need to touch the screen for viewing drop down or hidden menus. It does not record the movement of the hand on the screen.

2.Passive Digitizer: This digitizer is used in touch screen tablet PCs, where the user uses his fingers to navigate on the computer. It can sense the user’s finger only after it is pressed down on the screen. They come in two types capacitative and resistive. The capacitative type requires direct skin touch, while the resistive type can be operated by a stylus as well as a gloved hand.

3.Hybrid Digitizers: In this type, both the finger as well as the stylus can be used for navigation across the computer screen of the tablet PC.

4.Stroking Pen: This type doubles up as a normal pen as well as a stylus. The user can affix a piece of paper on top of the tablet PC screen, and write normally on the paper. Whatever he writes on the paper gets converted into digital impressions and transfers onto the screen automatically. This way the user can have dual copies of all documents, one on paper and the other on the computer.

With the introduction of Tablet PC to the computing world, Tablet PC is quite famous among different section of the society. Students, journalists, professionals and consumers who want to get portable PC are very satisfied with the development of Tablet PC.

Some of the well known brand who manufacturers Tablet PC are the Gateway Tablet PC, the Motion Computing Tablet PC, the Fujitsu Tablet PC, the Toshiba Tablet PC.

There are two types of Tablet PCs configurations:

1. The slate model PC tablet: – This model doesn’t have attached keyboard. Like a piece of paper you can use a tiny pen-stylus device to write on the surface of these tablet pcs, where your handwriting is digitally converted and showing up on the screen.

2. The convertible model PC tablet: – This tablet PC look like traditional notebooks, with displays that turns around and folds flat covering the keyboard facing outwards, but when flipped upright, the screen works just like a laptop computer or notebook computer.

Generally the features of Tablet PCs are

- Weight less than 2kg (some slates weight less than 1kg)

- Very compact

- Digitized displays (12-inch)

- No internal CD, CD-RW, or DVD drives

- Slower mobile processors, less memory and smaller hard drives

- Ports are few

- Microsoft Windows XP Home or Professional

As per your requirement you can upgrade the Tablet PC. For instance you can get larger hard drive 60GB or your Tablet PC screen can be upgrade for indoor and outdoor viewing.